Revolving drag-scraper.



Novl 841,929. n -PATENTBD JAN. 22, 1'907." J. BUTLER.

REVOLVING DRAG SGRAPER. APPLIOATION FILED MAY 16. 190s.

JAMES BUTLER, OF ST. CATHARINES, ONTARIO, CANADA.

REVOLVING DRAG-SCHAPER.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed May 16, 1906. Serial No. 317,248.

To all whom it may concern.'

Be it known that I, JAMES BUTLER, contractor, of the city of St.Catharines, in the county of IVelland, in the Province of Ontario,Canada, have invented certain new and useful Improvements in RevolvingDrag- Scrapersy, of which the following is the speciiication.

My invention relates to improvements in drag-Scrapers; and the object ofthe invention is to devise a drag-scraper which may be dumped andrestored to the' operative position without the driver having to exertany appreciable force in dumping, and therefore effect an economy inboth time and labor, and at the same time make the dumping easier forthe team.

My invention consists of a scraper-body on each side of which arelocated two pins. One is placed centrally between the rear top of thescraper-body and the edge of the mouth, and the other is situated nearthe mouth of the scraper-body.

The scraper has two handles connected by two cross-bars, one placed nearthe ends of the handles and the other just clear of the back of thescraper-body. To' this cross-bar is attached a device for holding` thescraper body in the position of loading and dumping. Thecentrally-located pins -act as pivots for the handles. These levers havetwo fingers at right angles to the handles, having lugs projectinginwardly therefrom. These act on bent portions of levers, which areconnected inside the handles. At the front end of each of these leversis a jaw which is designed to straddle the forward pin when on theloading portion. To these' levers is attached a bail to which thewhiffletree is connected. The parts are otherwise arranged and connectedin detail, as hereinafter more particularly explained.

Figure l is an elevation of the scraper in position for loading. Fig. 2is a perspective view of the scraper ready for dumping. Fig. 3 is anelevation after being dumped. Fig. 4 is a detail of the levers. Fig. 5is a sectional plan through the top of the lever, showing the key-slot.

In the drawings like letters represent corresponding parts in eachfigure.

A is the scraper-body, having two pins B located centrally between therear upper back of the scraper-body and the front edge of the mouth.

C represents two pins placed on near the mouth of the scraper-body.

The handles D are connected to the scraper-body by means of the pins B,which act as pivots on which the handles turn. At the front end of thehandles D two fingers E E are formed at right angles to the inner sides.At the upper extremities of the fingers two lugs F F are attached, whichact on a vertical projecting portion G of the lever H. The levers H arelocated inside the handles D and are held in operative connection toeach of the handles by pins B extending through slots I in the lever.

The front ends of the levers H are in the shape of jaws J, whichstraddle the forward pin C when the scraper is in a loading position, asshown in Fig. l.

In the forward ends of the levers H are formed key-slots K, by which thebail R is attached, and the bail R has I-shaped inner ends which extendinto the enlarged ends of the slots K and serve to hold the bail in theslots. The bail is provided with shoulders R to hold the ends of thebail flush with the inside face of the lever.

J ust clear of the back of the scraper-body is a connecting cross-bar L,to which are fastened two spring-catches M M and also a double-way catchN. These three catches act on a bar O of dovetail cross-section,fastened to the top of the back of the scraperbody A. The catch N iscontrolled by a rod P, which extends to a cross-bar Q, connected to thetwo handles D near the ends of the same. the catch N and extends throughan eye P, which extends downwardly from the crossbar Q. A spiral springP2 extends between the eye P and a pin on the rod and normally exerts aforward pressure on the rod P.

When the scraper is in a loading position, as in Fig. l, the catch N iscaught and the handles D are rigid. When in this position, the handles Dmay be pressed down slightly, so as to raise the mouth of thescraper-body A clear of the ground and prevent the scraper llingwhenbeing hauled by the team.

When the scraper is required to be dumped, the handles D are depressed.The lugs F F press against the vertical projecting portion Gr of thelever H, and as the lever is free to move as far as the slot allows thelevers H are released, and the line of draft of the team is changed fromthe pinO to the central pin B.

the sides The rod P is pivotally connected to l IIO.

This line or draft makes the scraper-body A turn easier about the pin B,which is centrally located, than it would be about the pin C, thusallowing the load to be dumped without the driver having to exert any'appreciable force. The two spring-catches M M catch on the bar O in thisposition and prevent the scraper-body A from revolving in the oppositedirection. Therefore if the driver exerts a slight upward pressure onthe handles D the scraper will dump and when dumped, as shown in Fig. 3,will be stopped 'the bar O. The lever will also drop back into place,and the scraper will again be in position for loading with the line ofdraft located at the pins C.

Although in this specification l have described the form of mechanisminvolved in my invention in detail, it will be understood that variouschanges may be made without departing from the spirit of my invention.

What I claim as my invention is- 1. In a drag-scraper the combinationwith the body, the handles, and means operated by the handles forchanging the line of draft from a point near the mouth of the scraper toa central point.

2. In a drag-scraper the combination with the body having two pinslocated on the side of the scraper, one near the mouth of the Scraperand the other centrally located between the mouth and the top of theback, of means operated by and connecting the han* dles to the pinswhereby the line of draft may be changed from the forward pin to the pincentrally located between the mouth and the top of the `bacl of thescraper, as and for the purpose specified. Y

' 3. In a drag-scraper, the combination with the body provided withcentral and front pins and the handles swung on the pins and having attheir lower ends projections at right angles provided with lugs on theinner faces of the same, levers having lock-jaws and provided withfingers projecting at right angles and coacting with the lugs of theprojections, as and for the purpose specified.

4. In a drag-scraper the combination with the body, provided withcentral and front pins the handles swung on the pins and hav ing attheir lower ends projections at right angles provided with lugs on theinner faces of the same, of slotted levers having lock jaws and providedwith fingers projecting at right angles and coacting with the lugs ofthe projections of the handles, as and for the purpose specified.

5. ln a drag-scraper the combination with the body provided with centraland front pins, and handles, of levers connected to the body, by thecentrally-located pins and provided with slots through which thecentrallylocated pins extend, and having j aw-shaped projections at thefront ends to catch the forward pins, as and for the purpose specified.

6. ln a drag-scraper the combination with the body and handles andlevers connected to the same and provided with key-slots having enlargedopenings at the inner ends, of the bails having L-shaped ends andshoulders adapted to abut the sides of the levers so as to make theL-shaped ends fiush with the inner surfaces of the levers, as and forthe purpose specified. I

JAMES BUTLER.

Witnesses:

B. BOYD, E. McEAcHERN.

